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Aug.f25, 192s.` 1,551,273

P.`A. STOVER" sToP SIGNAL LAMP Filed/pril v," 1925' -M/wwwfwf I PatentedAug. 25, 1925.

UNITED. STATES P .fxTENT OFFICE.

PAUL A. STOVER. OFRACINE, WISCONSIN, ASSIGNOR TO THE SIGVER SIGNAL ENGI-.NEERING COMFANY, OF RACINE, WISCONSIN, A CORPORATION F DELAWARE.

STOP-SIGNAL LAMP.

Application'led April 7,

ToaZZ whom t may Concern.'

. Be it known that I, PAUL A. STOVER,

,a citizen of the United States, residing at Racine, the county ofRacine and State -ofl Wisconsin, have invented certain new and usefulImprovements in Stop-Signal Lamps, 'of which the following is aspecification.

. My invention relates tov improvements in lo stop signal lamps. f Thegeneral object of the invention is to provide a simple, economicalconstruction. Another object is to provide an improved. socket for thelamp'. An additional object is tovr provide an improved bracket oradjustable support whereby the lamp may be readily mounted on differentparts of the automobile, l.such as the fender, tail light bracket, sparetire rack, or other support, the bracket permitting the lamp to bearranged -horizontally and pointed rearwardly.

In the accompanying drawings I have A illustrated one embodiment of the.invention, in which- Figure 1 is a front elevation of the lamp;

2. is a sectional elevation thereof;.

Fig. 3 lis an enlarged front elevation of the lamp supporting plate;

Fig. 4 is a sectional elevation on the line of Fig.3; Fig. 5 isanelevation of one form Vof ad-v justable bracket;

Fig. 6 is asidev elevation of part of the same; i

Fig. 7 is 'an ,elevationofJa. 'modified' bracket; s 'f Fig. 8 shows howthe lamp` may be mounted using the small bracket; and

Fig. 9 illustrates 011e use of the larger. bracket. i'

Thelamp comprises 'a parabolic casing 1, having a lens 2i inthe frontthereof. Said lensv has the word Stop, or other .warning, formed bycounter-sinking the letters below the inside surface Athereof .as shownin Fig. 2. The casing hasv an arm or bracket 3 secured thereto, by meansof which it may be' adjustably mounted, as hereinafter explained. v

The incandescent lamp 4 is provided'with the usual base 5 havingprojecting pins 6 forming part of' a bayonet lock in' connection withthe lamp support. i' Said support" is formed of Ia piece ofsheet metal??hav- 1923. serial No. 630,657.

-up therefrom about a central opening, said flange havingk a pair ofnotches therein 'which extend-- radially into the plate, formin'grecesses "13 which receive the pins 6 on the lamp base.v Thelamp base'is inserted through the central opening and then turned a quarter turnto permit said pins to be snapped into a 'pair of radial recesses 14 bya resilient Contact member 15, which engages the center contact 16, ofthe lamp, and Vhelps hold said lamp in place. Said recesses 14 arepressedv into the rear. surface of said plate or lamp support 7. Saidpins close oneside of the circuit, the other side being closed throughsaid spring contact ystrip 15. Said contact is mounted on a Vbindingpost comprising a screw 17 and nuts 18.. Saidscrew is-supported on -saidplate but held out of contact therewith by means of fibre washers 19,20, as shown in Fig. 4. Said Contact strip has a projecting rib pressedtherefrom which fits a corresponding recess in the -fibre. washer 19,

1 thereby positioning said Contact centrally `of and behind the openingin'plate 7 and also preventing turning thereof with reference tosaidtbinding post. A conductor 21 extends from the binding post throughan insulating bushing22-in the sidewall of Vthe' casing.

The supportingL bracket shown in Fig. 5

comprises the arm 3 on the casing and a bracket 23 having openings v.24,25, 26

' therein, and'having a bent up extension 27 at one end thereof. A bolt.28 passes through openings in the adjacent parts and -is provided witha.lock washer 29. With v this .arrangement the bracket may-be swungthrough a considerable angle tol permit the A'lamp to be mounted on anyconvenient-part of the car. It is'shown in'Fi 9 mounted above 'the' taillight, the brac et 23 being clamped between the rear of said light .and

the-supporting member to which it is' atposition.

tached. Supporting the lamp iii this inaniier is made possible throughthe provision of openings 2li, 25 and 26 in the bracket 23, openings 24and 26 receiving the ordinary rearwardly projecting retaining bolts ofthe tail light and opening 25 accommodating the centrally disposedelectrical connector thereof.

A short bracket 30, Fig. T, may be substituted for the larger bracket,in case it is desired to mount the lamp on the fender, as shown ,in Fig.8, for' example, or on the spare tire rack or other supporting frame.

It will be seen that the outer surface of the lens 2 is moldedintoprisms forming what is known as a jewel surface. I tlius provide notonly an improved lens construction but one having better photometricvalue or brilliancy. Said lens is held in p lace in the end of thecasing by means of a split metal ring, as sho-wn in Fig. 2, permittingit to be rotated with reference to said casing. `Witli this arrangement,if it is necessary to mount the bracket 23 in hori Zontal position, thelens may be rotated so as to bring the word Stop in a horizontal Inother words, a universal adg justment is permitted by the bracket androtatable lens. If desired, said bracket 23 may be provided with notches3l and 32, as

shown in Il`ig..5, whereby said bracket may be broken olf at this pointand used in lieu of the bracket 30 shown in Fig. 7.

l. An automobile signal lamp comprising an outer casing open at one end,av lens closing said opening, a spring yoke securedl to the other end ofsaid casing within the same, a supporting plate held in position by saidspring yoke and a lamp mounted on said supporting plate.

2. A signal lamp comprising an outer casing.` a spring yoke secured nearthe center to said plate behind anopening therein but.

insulated therefrom, and an incandescent lamp having a base receivedwithin said Aopening and engaging said contact.

3. An automobile signal lamp comprising a casing, a curved strip ofspring metal hav ing its ends bent to form catches and secured at anintermediate point to said casing, a metal plate having notches thereinto engage said spring catches and having an opening with a struck-upflange surrounding the same, a pair of radial notches in said flangeextending into saidplate to receive the radial pins of a lamp base,radial depressions in said plate on the side op-posite the said flangeto receive said pins upon rotation of said base, a yielding contactmember secured at the rea-r of said plate but insulated therefrom, abottom contact on said lamp base engaging said resilient contact, abinding post electrically connected to said resilient contact, and aconductor eX- tending therefrom through an opening in said casing.

In testimony whereof, I have subscribed my name.

PAUL A. STOVER.

